The San Bernardino attack is the 12th school shooting of 2017 — and the second in a week

https://www.washingtonpost.com/news/wonk/wp/2017/04/10/the-san-bernardino-attack-is-the-12th-school-shooting-of-2017-and-the-second-in-a-week/

Since 2013, there have been about 200 school shootings in America, according to a count by one group advocating gun regulations.